Île Saint-Louis

The Île Saint-Louis is one of two natural islands in the Seine River in Paris, France, the other being Île de la Cité. Île Saint-Louis was mapped and built from end to end during the 17th-century reigns of Henry IV of France and Louis XIII of France, and it was one of France's first examples of urban planning. The island was named for King Louis IX of France, and it became an elegant neighborhood, having formerly been used for the grazing of market cattle and stocking wood. The island is located in the 4th arrondissement of Paris, and it had a population of around 4,453 people as of 2018.